KR101851320B1 - Flickering signal lamp and control method - Google Patents

Abstract

The present invention relates to a flashing traffic light and a control method thereof. The flashing traffic light comprises: a signal unit (110) in which a plurality of light emitting diodes (111) are arranged on a circular substrate; and a controller (200) controlling a character in the signal unit (110) to flash in intaglio and embossed with a color matching the character due to switch on and off of the light emitting diodes (111). The flashing traffic light can display a flashing signal such as ′stop′ and ′slow′ in an intaglio and embossed character having a corresponding color so that a driver can easily recognize a signal state.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flickering signal lamp,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flashing signal lamp and a control method thereof, and more particularly, to a flashing signal lamp for improving a blinking method to facilitate operator identification and a control method thereof.

Traffic lights are installed on the road so as to smoothly control the movement of the vehicle, and the vehicle runs or stops depending on the signal of the traffic lights.

The traffic light operates flashing lights to prevent vehicle signal violations, reduce unnecessary vehicle stops, reduce economic losses and ensure safe and smooth vehicle traffic.

The blinking signal light means a signal light in which one color signal is repeatedly blinking.

The blinking traffic lights are installed to prevent traffic accidents by informing the driver in advance at intersections where school zones, silver zones, traffic accidents, and traffic lights are difficult to install.

FIG. 1 is a block diagram showing a conventional flashing signal lamp control method.

1, in the conventional flashing signal lamp control method, AC (alternating current) power supplied from the outside is outputted to each of the power supply devices 3 and 5 through an alarm lamp controller 2 circuit 1, The flashing signal is displayed on the flashing signal lamp by the AC power output of the device (3, 5).

However, in the conventional flashing signal lamp, the red flashing signal and the yellow flashing signal are controlled to be turned on and off and blinked, so that it is difficult for the driver to confirm the signal and the driver to understand the correct signal.

For example, the red flashing signal means pausing and the yellow flashing signal means progressing while slowing down, but there is a risk that a traffic accident may occur because the driver does not understand the correct signal.

In particular, the novice driver often does not know whether to slow down when the yellow color is blinking. Therefore, it is necessary to improve the blinking method so that the driver can easily confirm.

Patent Document 1: Japanese Patent Publication No. 1661964 (published on November 11, 2013)

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a blinking signal lamp and a control method thereof, in which a blinking method is improved and a character blinking method is applied so that a driver can be easily identified,

According to an aspect of the present invention for achieving the above object, the present invention provides a liquid crystal display device including a signal part including a plurality of light emitting diodes arranged on a circular substrate, And a controller for controlling the characters to be blinking with embossing and engraving with colors corresponding to the characters.

The light emitting diode is a single color, mixed color light emitting diode.

The controller controls the two or more colors in the LED to be selectively blinked so that the characters are blinked with the colors corresponding to the characters with the positive and negative angles.

The character is one kind selected from pause, slow, STOP, and SLOW.

The pause and STOP are controlled so as to be blinked in such a manner that a red double-sided character and a red double-sided character are alternated.

The slowdown and SLOW are controlled so as to blink in such a manner that yellow embossed characters and yellow engraved characters are alternated.

The controller includes a constant voltage converter for converting an AC power source to a DC power source, a flicker controller for driving and driving the DC power source and transmitting a drive control signal, a control unit for controlling the signal output current amount of the DC power source And a constant current circuit for controlling on / off and emission color of the light emitting diode.

A signal lamp for displaying all the flashing signal, the running signal, and the stop signal, or a signal for displaying only the flashing signal, and the flashing signal is flickered in such a manner that the embossed character signal and the engraved character signal are alternated.

Wherein the flashing signal is selected from among a pause, a slow motion, a STOP, and a SLOW character, wherein the pause, the STOP character is alternated with a red embossing character and a red engraving character signal, and the SLOW is a yellow embossing character, Signal.

A step of converting the AC power source into a DC power source by the constant voltage converter, driving the DC power source by receiving a DC power source and outputting a drive control signal, receiving a drive control signal of the blinking control unit from the constant current circuit, And controlling on-off and emission colors of a plurality of light emitting diodes constituting the signal portion by controlling an amount of current.

In the present invention, a blink signal such as 'pause' or 'slow motion' is displayed as a bold embossed character having a corresponding color so that a driver can easily recognize a signal state.

Therefore, the present invention is effective in preventing traffic accidents by recognizing information in advance at an intersection, a road with a crosswalk, a school zone, a silver zone, a traffic accidents zone, and an intersection where traffic lights are difficult to install .

1 is a block diagram showing a conventional flashing signal lamp control method.
2 is a view showing an example in which a blink signal lamp according to an embodiment of the present invention is applied to a road;
3 is a block diagram showing a flashing signal lamp control method according to an embodiment of the present invention;
4 is a diagram illustrating an example of flashing signal flashing according to an embodiment of the present invention.
5 to 9 illustrate examples of a signal portion applied to a flashing signal lamp according to an embodiment of the present invention.
10 is a diagram for explaining a character blinking method in a signal portion of a flashing signal lamp according to an embodiment of the present invention.
11 is a photograph showing an example in which a flashing signal lamp according to an embodiment of the present invention is applied.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a diagram illustrating an example in which a flashing signal lamp according to an embodiment of the present invention is applied to a road, and FIG. 3 is a block diagram illustrating a flashing signal lamp control method according to an embodiment of the present invention.

2, the flashing signal lamp 100 of the present invention is installed on a pile fixed to a sidewalk 20 located on one side of a road 10.

The road 10 corresponds to a road having an intersection and a crosswalk. The flashing signal lamp 100 may be a signal indicating a flashing signal, a traveling signal, and a stop signal. In this case, the flashing signal lamp may include four signal portions 111. [

In the case of a flashing signal lamp having four signal parts 111, information can be displayed to a vehicle driver traveling in each direction of the road.

Alternatively, the flashing signal lamp may be a signal light for indicating only a blinking signal, which is installed at an intersection where it is difficult to install a school zone, a silver zone, a traffic accident area, and a traffic light. In this case, the flashing signal lamp can display only the corresponding characters, so that it can have four or less signal parts (see FIG. 11).

Hereinafter, for convenience of explanation, a flash signal lamp having four signal units will be described as an example.

2 and 3, the flashing signal lamp 100 includes a signal portion 111 and a controller 200. [

The signal unit 110 includes a plurality of light emitting diodes (LEDs) 111 arranged on a circular substrate. The plurality of light emitting diodes 111 arranged in the signal unit 110 make it easy to express embossed diagonal characters. The signal unit 110 employs a point light emission type in which the light emitting diodes 111 are arranged in a certain form, thereby enabling various characters to be expressed.

For example, the signal unit 110 includes a plurality of light emitting diodes 111 arranged to have the same angular arrangement as that of the embossed letters in order to accurately convey the embossed character information to the driver.

The light emitting diodes 111 may be regularly arranged in a circular or circular shape on a circular substrate.

The light emitting diode 111 may be a single color, mixed color light emitting diode. The monochromatic, mixed-color light emitting diodes may be RGB light emitting diodes. The light emitting diode 111 can display a single color when emitting one of RGB, and can display a mixed color when emitting two or more of RGB.

For example, a monochromatic, mixed-color LED can emit color by self-emission of three RGB pixels. That is, the monochromatic and mixed-color LEDs emit red (R), green (G), and blue (B) colors at the same time in the diode body.

The signal unit 110 is turned on, off or blinked by the constant current circuits 230 and 240 controlled by the flicker control unit 220 to be described later.

The constant current circuits 230 and 240 are connected to the flicker control unit 220 to control the light emission of each of the light emitting diodes 111 so that the driver can recognize a predetermined traffic signal.

The traffic signal includes both the flashing signal, the traveling signal, and the stop signal.

For example, the signal unit 110 is flickered in such a manner that a double-sided character signal and a double-sided character signal are alternated in a flashing signal.

In the embossed character signal, a light emitting diode corresponding to a character is turned on and a light emitting diode corresponding to the background is turned off. In the case of an engraved character signal, a light emitting diode corresponding to a character is turned off, . ≪ / RTI > That is, the above-mentioned two states are flickered in an alternating manner.

The amount of output current is controlled by the constant current circuits 230 and 240 connected to the light emitting diodes 111 so that the light emitting diodes 111 corresponding to characters or the light emitting diodes 111 corresponding to the background are alternately turned on and off Flashes. The flashing signal alternating between the embossed character signal and the engraved character signal may be 0.1 to several seconds apart.

The flashing signal lamp 100 is preferably in the form of a cover for waterproofing the light emitting diode 111.

The controller 200 controls the ON and OFF states of the signal unit 110, the blinking state, and the blinking time.

The controller 200 may include a plurality of apparatus units, a terminal board, a lead-in line, and the like for controlling the flashing signal lamp 100 at a predetermined position in the vicinity of the shed 20 where the flashing signal lamp 100 is installed . In addition, the controller 200 may include a communication unit to control the flashing signal lamp 100 wirelessly.

The controller 200 includes a constant voltage converter 210, a flicker control unit 220, and constant current circuits 230 and 240 for controlling lighting, turning off and blinking.

The constant voltage converter 210 converts AC power to DC power. The constant voltage converter 210 receives an AC power source (AC power source) supplied from the outside and converts it into a DC power source (DC power source) to supply a DC power source (DC power source) to the flashing control unit 220.

For example, the AC 220V power supplied from the outside may be supplied and converted to a constant DC voltage. Then, the DC voltage supplied to the LED 111 may be down-converted to a predetermined level and then supplied to the flashing controller 220 have.

The flickering control unit 220 receives and drives the DC power and outputs a drive control signal.

The flickering control unit 220 turns on / off the light emitting diode 111 of the signal unit 110, and controls the flicker and blink time.

The flickering control unit 220 controls the signal unit 110 to flicker in a manner that the control unit 220 outputs a control signal to the signal unit 110 so that characters are alternately displayed in an embossed embossed pattern.

The flickering control unit 220 can control the blinking signal of the signal unit 110 by power distribution.

The light emitting diode 111 is activated by the operation of the flashing control unit 220. [ The flickering control unit 220 controls the brightness of each of the light emitting diodes 111 according to the current applied to the R, G, and B light.

The constant current circuits 230 and 240 receive the drive control signal of the flicker control unit 220 and control the output current amount of the signal unit 110 of the DC power source. In addition, the constant current circuits 230 and 240 can stably maintain the brightness of the signal unit 110 with a stable power supply.

Preferably, a constant current circuit is applied for stable LED driving of the embossed character flashing signal.

The constant current circuits 230 and 240 can control ON and OFF of the light emitting diode 111 and emission color by controlling the output current amount of the signal unit 110 of the DC power source. The constant current circuits 230 and 240 increase the amount of output current of the signal portion 110 of the DC power source and turn off the light emitting diode from turning on the light emitting diode 111 and lowering the output current amount of the signal portion 110 of the DC power source, can do.

The constant current circuits 230 and 240 can implement the color required for controlling the amount of output current of the signal unit 110 of the DC power source supplied to the RGB (mixed color) pixels of the light emitting diode 111.

The constant current circuits 230 and 240 can be divided into a constant current circuit 1 230 and a constant current circuit 2 240. The constant current circuit 1 230 and the constant current circuit 2 240 control the amount of output current of a portion corresponding to the background of characters and characters so that a flashing signal alternating between the embossed character signal and the depressed character signal is displayed on the signal portion 110 .

The embossed character signal increases the amount of current supplied to the light emitting diode 111 corresponding to the character by the constant current circuit 1 230 receiving the control signal of the flashing control unit 220 and the constant current circuit 2 By controlling the current output amount to be supplied to the light emitting diode 111, which is lower than the current output level.

On the contrary, the dimple character signal lowers the amount of current supplied to the light emitting diode 111 corresponding to the character by the constant current circuit 1 (230) receiving the control signal of the flashing control unit 220, and the constant current circuit 2 And the current output amount supplied to the corresponding light emitting diode 111 is increased.

The colors displayed on the background of characters and characters can be controlled by controlling the amount of output current applied to the RGB by the constant current circuit 1 230 receiving the control signal of the flashing control unit 220.

When the constant current circuit 1 230 and the constant current circuit 240 receive the control signal of the flicker control unit 220 and increase the amount of current output, the entire signal unit 110 can be displayed as being lit, and the constant current circuit 1 230 ) And the constant current circuit 2 (240) decrease the current output amount, the entire signal portion 110 may be displayed as off. In this case, the case of red lighting or green lighting display may be applicable.

FIG. 4 is a diagram illustrating an example of a flickering signal flashing according to an embodiment of the present invention, and FIGS. 5 to 9 show examples of a signal portion applied to a flashing signal light according to an embodiment of the present invention .

FIG. 4 corresponds to the red flashing signal and is flickered in such a way that the 'pause' character is alternately inverted. The 'Pause' color is displayed in red.

By the control of the constant current circuit, 'pause' is displayed in a red color and 'pause' is blinked in a manner of alternating intaglio red. Red embossed and engraved 'PAUSE' character signals can be alternated in 0.1 ~ seconds interval.

Since the red flashing signal means pause, the driver who has confirmed the red letter flashing signal can immediately recognize that it has to pause.

FIG. 5 corresponds to the yellow flashing signal, and the 'Slow' character is flickered in a manner such that the characters are alternately embossed. The 'slowing' color is indicated in yellow.

By the control of the constant current circuit, 'slow down' is displayed in an embossed yellow color, and 'slow down' is blinked in an alternating intaglio yellow color. Yellow embossed and engraved 'Slow' character signals can be alternated at intervals of 0.1 to several seconds.

Since the yellow flashing signal means slowdown, the driver who has confirmed the yellow character flashing signal can immediately recognize that the driver must slow down.

6 corresponds to a red signal, and red light may be lighted on the signal portion without a character.

Of course, the 'stop' red character signal may be turned on in the signal part. Since red corresponds to a stop, when the 'stop' red character signal is lit, the operator who recognizes the character can immediately recognize that it should stop.

The constant current circuit 1 and the constant current circuit 2 can control the current output of the pixel corresponding to the red of all the monochromatic and mixed color LEDs when the red character is turned on.

7 corresponds to a green signal, and green may be lit without a character.

Of course, the 'driving' green character signal may be on. Since green corresponds to driving, it is immediately recognizable that the driver who confirms the character when the "driving" green character signal is turned on.

The constant current circuit 1 and the constant current circuit 2 can control the current output of the pixel corresponding to the green of the entire single-color, mixed-color LED when the green character is turned on.

8 corresponds to the red flickering signal of another embodiment, and the 'STOP' character is flickered in such a manner that the characters are alternately embossed. The 'STOP' color is displayed in red.

By the control of the constant current circuit, 'STOP' is displayed in red color and 'STOP' is flashing in red color. Red embossed and engraved 'STOP' character signals can be alternated every second.

Since the red flashing signal means STOP, the driver who has confirmed the red flashing signal can immediately recognize that it has to pause.

9 corresponds to the yellow flashing signal of another embodiment, and the 'SLOW' character is flickered in such a manner that the characters are alternately embossed. The 'SLOW' color is displayed in yellow.

The control of the constant current circuit flickers in such a way that 'SLOW' is displayed in an embossed yellow color and 'SLOW' is alternately displayed in an obscured yellow color. Yellow embossed and engraved 'SLOW' character signals can be alternated every second.

Since the yellow flashing signal means SLOW, the driver who has confirmed the yellow character flashing signal can immediately recognize that the driver must slow down.

The time and order in which the red flicker signal, the yellow flicker signal, the red signal, and the green signal are changed can be controlled based on the set time stored in the flicker controller or the set time value received wirelessly. Each signal can be set to 20 seconds, for example, and the flashing signal can be set to alternate embossed engraving characters at intervals of 0.1 to several seconds.

The flashing signal lamp control method includes the steps of converting the AC power input from the outside into the DC power by the constant voltage converter 210, driving the flash power control unit 220 by receiving the DC power and outputting the drive control signal, Off control of the plurality of light emitting diodes 111 constituting the signal unit 110 by controlling the output current amount of the signal unit 110 of the DC power source by receiving the drive control signal of the flicker control unit 220 in the light emitting units 230 and 240, And a step of controlling.

The method of controlling the flashing signal by the DC power supply can stably implement the flashing signal in which the embossed characters and the engraved characters are alternated by the stable power supply.

FIG. 10 is a diagram for explaining a character flashing method in a signal portion of a flashing signal lamp according to an embodiment of the present invention.

As shown in FIG. 10, the signal unit 110 is a point light emission type in which a plurality of single-color, mixed-color LEDs are arrayed in a predetermined form.

The number of monochromatic and mixed-color light emitting diodes 111 constituting one signal unit 110 is limited to 20 for the sake of convenience of description. May be regularly arranged in a circular or circular shape on a circular substrate.

10 (a) shows a case where the signal unit 110 is turned off, FIG. 10 (b) shows a case where a relief character signal is displayed on the signal unit, and FIG. 10 (c) It can be confirmed that the monochromatic and mixed-color LEDs 111 are applied to the signal unit 110 to effectively display the embossed character signal and the lit signal.

In addition, since the light emitting diodes are monochromatic and mixed color light emitting diodes, colors corresponding to the corresponding characters can be displayed together with the embossed character signal.

The 'Si' embossed characters shown in (b) of FIG. 10 can indicate the flashing signal while the light emitting diodes other than the 'Si' embossed character and 'Si' are turned on and the 'Si' cathode characters are alternated.

FIG. 11 is a photograph showing an example in which a flashing signal lamp according to an embodiment of the present invention is applied.

11, the flashing signal lamp 100 may be a traffic light installed in an intersection where a school zone, a silver zone, a traffic accident bundle area and a traffic light are difficult to install, and displays only a blinking signal.

For example, the flashing light flashes the amber 'slow down' character with embossed and engraved. If the yellow 'slowing' character is blinking with embossing or engraving, it is easy to recognize the driver, and the driver must be slow.

The yellow 'slowing' embossed character can be realized by increasing the amount of current supplied to the light emitting diode corresponding to the slow character and decreasing the amount of the current supplied to the light emitting diode corresponding to the background of the slow character.

On the contrary, the yellow 'slow-moving' engraving character can be implemented by lowering the amount of current supplied to the light-emitting diode corresponding to the slow character and increasing the amount of current supplied to the light-emitting diode corresponding to the background of the slow character.

This allows the driver to recognize the information in advance and prevent traffic accidents.

The operation of the present invention will be described below.

When the constant voltage converter that converts an AC power source to a DC power source supplies DC power to the flashing control unit 220, the flashing control unit 220 receives the DC power and turns on the light emitting diode 111 of the signal unit 110 OFF and the emission color to the constant current circuits 230 and 240. [

The constant current circuits 230 and 240 receive the control signal of the flicker control unit 220 and control the amount of output current of the signal unit 110 of the DC power source to control the ON and OFF of the plurality of light emitting diodes 111, The character flashing signal is displayed on the traffic light.

Green lights on the signal portion 110 in the driving signal state, red lights in the signal portion 110 in the stop signal state, 'pause' in the pause signal state is flickered in red embossed engraving state, , 'Slow motion' is blinking with a yellow embossed emboss.

'Pause' and 'Slow' signals are displayed with embossed depressed characters with corresponding colors so that the driver can easily recognize the signal status.

The embossed letter flashing signal can increase the visibility and readability by giving the driver a powerful signal to enhance the identification effect.

This can reduce unnecessary stoppage or overspeed in front of a traffic light, so it can expect various effects such as safe driving, traffic communication and fuel saving.

Best Mode for Carrying Out the Invention The present invention has been described with reference to the drawings and the specification. Although specific terms are used herein, they are used for the purpose of describing the present invention only and are not used to limit the scope of the present invention described in the meaning of the claims or the claims. Therefore, it is to be understood that the present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics thereof. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1: Alarm light controller 2 Circuit 3: Power supply
7: Traffic light 10: Road
20: India 100: Traffic light
110: signal part 111: light emitting diode part (LED)
200: controller 210: constant voltage converter
220: flashing control unit 230: constant current circuit 1
240: Constant current circuit 2

Claims (10)

A signal portion in which a plurality of light emitting diodes are arranged on a circular substrate; And
A controller for controlling the characters on the signal unit to be turned on and off with a hue corresponding to the characters on and off of the light emitting diodes;
Lt; / RTI >
The controller
A constant voltage converter for converting AC power to DC power;
A flicker control unit for driving the DC power supply and transmitting a drive control signal; And
A constant current circuit which receives the drive control signal of the flicker control section and controls the amount of output current of the signal section from the DC power source to control the ON and OFF of the light emitting diode and the emission color;
/ RTI >
The constant current circuit
A constant current circuit 1 for controlling a current output amount supplied to a light emitting diode corresponding to the character,
And a constant current circuit (2) for controlling a current output amount supplied to a light emitting diode corresponding to the background of the character,
A signal lamp for displaying all the flashing signal, the traveling signal, and the stop signal, or a signal lamp for displaying only the flashing signal,
Wherein the signal lamp has a plurality of signal portions,
Wherein the flashing signal is flickered by the constant current circuit controlled by the flashing control unit in such a manner that an angular character signal and an engraving character signal are simultaneously alternated to the plurality of signal units. The method according to claim 1,
Wherein the light emitting diode is a single color or mixed color light emitting diode. delete The method according to claim 1,
Wherein the character is one kind selected from a pause, a slow motion, a stop, and a slow motion. The method of claim 4,
Wherein the pause and stop are controlled so as to blink in such a manner that red embossed characters and red engraved characters are alternated. The method of claim 4,
And the SLOW and SLOW are controlled so as to blink in such a manner that yellow embossed characters and yellow engraved characters are alternated. delete delete delete Converting the AC power to a DC power by the constant voltage converter;
A step in which the flickering control unit receives and drives the DC power source and outputs a drive control signal; And
And controls the on-off and emission colors of the plurality of light emitting diodes constituting the signal portion by controlling the amount of output current of the DC power source by receiving the drive control signal of the blinking control portion in the constant current circuit, Causing the signals to flicker in an alternating manner;
/ RTI >
The embossed character signal and the depressed character signal
The constant current circuit is divided into a constant current circuit 1 and a constant current circuit 2,
The constant current circuit 1 controls a current output amount supplied to a light emitting diode corresponding to a character,
The constant current circuit 2 controls the amount of current supplied to the light emitting diode corresponding to the background of the character so as to be displayed independently,
The flickering control unit controls the flicker control unit such that the flickering control unit outputs a drive control signal to the constant current circuit 1 and the constant current circuit 2 in a power distribution so that the signal units are flickered in such a manner that the ambiguous character signal and the engraved character signal are simultaneously alternated to the plurality of signal units. And outputs the blinking signal lamp control signal.

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